Here are two places that aren't on Holly's site but are worth trying in Montgomery County. Let us know how you like them or if you find any other places.

Speck's Drive-In in Collegeville is a fried chicken place but their texas wieners are pretty good. They aren't on the menu but order a dog with mustard, onions & chili. The sauce is thick like you get in Scranton. http://local.yahoo.com/info-12302225-...

On High Street in Pottstown is a place called Very Best. Their sauce is the same style as John's Doggie shop on 322 and Harry's Hotdogs in Exton/Sadburysville. http://local.yahoo.com/info-12313033-...

I tried the Philly Hot Dog Cafe for lunch today. The rolls are very good, the pickles on the Vienna were great (like the ones you get on Easton Style dogs). The chili sauce was very basic (probably straight of a can with chili powder added). I agree with the observation that the dogs would be better if grilled. They have a nice griddle and the casing on their dogs would be crispy instead of soggy.

Its a nice place but if I am in that area, I will head to Speck's instead.